EP2946126A1 - Einwindige automatisierte wellfeder mit bohrungen - Google Patents
Einwindige automatisierte wellfeder mit bohrungenInfo
- Publication number
- EP2946126A1 EP2946126A1 EP14740211.9A EP14740211A EP2946126A1 EP 2946126 A1 EP2946126 A1 EP 2946126A1 EP 14740211 A EP14740211 A EP 14740211A EP 2946126 A1 EP2946126 A1 EP 2946126A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- wave spring
- spring
- flat wire
- wave
- gap
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000013011 mating Effects 0.000 abstract description 21
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 2
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 238000003754 machining Methods 0.000 description 2
- 238000006748 scratching Methods 0.000 description 2
- 230000002393 scratching effect Effects 0.000 description 2
- 230000001351 cycling effect Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F1/00—Springs
- F16F1/02—Springs made of steel or other material having low internal friction; Wound, torsion, leaf, cup, ring or the like springs, the material of the spring not being relevant
- F16F1/32—Belleville-type springs
- F16F1/328—Belleville-type springs with undulations, e.g. wavy springs
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F2238/00—Type of springs or dampers
- F16F2238/02—Springs
- F16F2238/022—Springs leaf-like, e.g. of thin, planar-like metal
Definitions
- a flat wire, gap-type, single turn wave spring made using a coiling manufacturing process wherein the portions of the spring adjacent the gap are made flat.
- the flat portions are configured to abut a mating assembly.
- the improvement of the present invention is in the flattening of the portions of the spring adjacent the gap.
- the flat portions herein the "flats”, glide smoothly along the surface of the mating assembly.
- the wave spring of the present invention has only a single turn about a central axis.
- the single turn is formed from a length of flat wire that is wound in the shape of a portion of a circle on a predetermined radius for an arc length of less than 360°.
- the flat wire length for each spring has a rectangular cross- section for the entire length of the arc and the cross- section is preselected and constant.
- the width of the flat wire is also constant for each spring.
- the fiat wire has a predetermined length and it terminates in two free ends which are separated from each other by an intervening gap. Preferably, the two free ends are axial!y aligned with each other along the length of the flat wire.
- Each of the two free ends have flattened portions which are perpendicular or radial to the central axis and are configured to slide smoothly along a working element when the wave spring is used in a spring application.
- the tips or sharp edges of the free ends do not contact the mating surface in a manner which causes them to scratch or dig into the mating surface. Instead, the flattened portions of the free end are in contact with the mating surface.
- a plurality of waves is formed along the length of the flat wire and each of the waves have opposing crest and trough portions which define respective first and second working surfaces on opposite surfaces of the wave spring.
- the gap may be disposed on the flat wire length between adjacent crests and troughs of a wave or on a crest or trough of a wave.
- the first working surface contacts a first working element and this surface is associated with the crests of the waves.
- the second working surface is associated with the wave troughs.
- the mating surface referenced above, which comes into contact with the flattened portions, can be either the first working surface or the second working surface.
- the wave spring has a free height which is equal to the distance between the crests and troughs in the absence of loading of the wave spring.
- the gap has a length sufficiently large to permit the free ends to move toward each other without touching each other when the wave spring is compressed from its undeflected free height to a lesser height in response to loading by either the first or second or both of the working elements. It is also understood that in some applications the spring may be in contact with a constraining diameter when the spring clings in a housing or on a shaft.
- the waves of the wave spring can be made to define curves which are suitable to the application for the spring.
- the waves may define a substantially sinusoidal curve or another curve or combination thereof as is known in the art.
- the free ends of the flattened portion can be axially aligned with each other along a flat wire length.
- the gap can be disposed on the flat wire length between adjacent crests and troughs of one of the waves or on one of a crest or trough of one of the waves.
- the location of the gap relative to the waves is predetermined depending upon the desired application for the spring.
- the crests and troughs may be equidistant from each other or not, consistent with the desired design characteristics.
- the number of waves and crests is selected on the same basis.
- Fig. 1 illustrates in elevation a prior art wave spring 1 wherein the height of the spring is illustrated by the space between the lines designated by arrows 2-2.
- FIG. 1 A is an enlarged view of the portion of the spring 1 encircled in Fig. 1 by A.
- Fig. 1A highlights the sharp edges 3 on each side of the gap 4.
- the sharp edges 3 are at the ends of spring portions that follow the contour of the spring 1.
- the bottom portions of the sharp edges 3 contact a mating surface.
- Fig. 2 illustrates in elevation the improved wave spring 10 of the invention.
- Fig. 2A is an enlarged view of the portion of the spring of the invention encircled in Fig. 2 by B.
- Fig, 2A highlights the fiats 13.
- the lengths of the flats are illustrated by the space between the lines designated by arrows 15. In a preferred embodiment, the length of the flats is greater than the width 16 of the spring wire. (See Fig. 3.)
- the gap 14 becomes smaller as the fiats 13 glide smoothly toward one another along the mating surface.
- the flats also glide smoothly along the mating surface as the compression is released.
- the height of the spring 10 doesn't matter because the fiats 13 are made to rest on the mating surface in a manner that does not allow the edges to dig into the mating surface.
- the flats 13 lie flat against the mating surface when spring 10 is not under compression.
- Fig. 3 is a top view of spring 10 illustrating the width 16 of the spring wire.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Springs (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL14740211T PL2946126T3 (pl) | 2013-01-17 | 2014-01-10 | Jednozwojowa sprężyna falista z przerwą i płaskimi końcami |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US201361753597P | 2013-01-17 | 2013-01-17 | |
PCT/US2014/011011 WO2014113283A1 (en) | 2013-01-17 | 2014-01-10 | Gap-type, single turn, tooled wave spring |
Publications (3)
Publication Number | Publication Date |
---|---|
EP2946126A1 true EP2946126A1 (de) | 2015-11-25 |
EP2946126A4 EP2946126A4 (de) | 2016-11-02 |
EP2946126B1 EP2946126B1 (de) | 2018-09-12 |
Family
ID=51210004
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP14740211.9A Active EP2946126B1 (de) | 2013-01-17 | 2014-01-10 | Einwindige wellenfeder mit spalt und flachen enden |
Country Status (5)
Country | Link |
---|---|
US (1) | US9453549B2 (de) |
EP (1) | EP2946126B1 (de) |
CA (1) | CA2937141C (de) |
PL (1) | PL2946126T3 (de) |
WO (1) | WO2014113283A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106763391A (zh) * | 2017-01-12 | 2017-05-31 | 王炳超 | 两级主簧式非等偏频型渐变刚度板簧渐变间隙的设计方法 |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102012010480A1 (de) * | 2012-05-26 | 2013-11-28 | Brose Fahrzeugteile GmbH & Co. Kommanditgesellschaft, Würzburg | Elektromotorischer Antrieb, insbesondere Gebläseantrieb |
CN106734780B (zh) * | 2016-12-27 | 2018-11-09 | 中国南方航空工业(集团)有限公司 | 波纹弹簧成型毛坯、成型模具及加工方法 |
WO2019163953A1 (ja) * | 2018-02-26 | 2019-08-29 | 日本発條株式会社 | ウェーブスプリング |
EP3549732B1 (de) * | 2018-03-30 | 2021-08-11 | The Gillette Company LLC | Rasierermechanismen |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH10184723A (ja) * | 1996-12-27 | 1998-07-14 | Exedy Corp | ウエ−ブスプリング付き油圧クラッチ装置 |
AU1816899A (en) * | 1997-12-10 | 1999-06-28 | Kelsey-Hayes Company | Pedal simulator spring for vehicle brake system |
JP2000274468A (ja) | 1999-03-23 | 2000-10-03 | Mitsubishi Steel Mfg Co Ltd | コイルドウエーブスプリング |
US6250618B1 (en) * | 1999-09-10 | 2001-06-26 | Smalley Steel Ring Company | Curved wave shim |
US6254071B1 (en) | 1999-12-20 | 2001-07-03 | Smalley Steel Ring Company | Single-turn, round wire wave spring |
JP4504703B2 (ja) * | 2004-03-01 | 2010-07-14 | 日本発條株式会社 | 波形ばね |
JP4770920B2 (ja) | 2008-11-26 | 2011-09-14 | トヨタ自動車株式会社 | ウェーブスプリングの挟持構造および摩擦係合装置 |
DE102010029309B4 (de) * | 2010-05-26 | 2017-03-30 | Robert Bosch Gmbh | Lageranordnung mit einem Sicherungsring mit axialer Vorspannung |
DE202011002271U1 (de) * | 2011-02-02 | 2011-04-28 | Scherdel Innotec Forschungs- Und Entwicklungs-Gmbh | Wellfeder |
JP6382715B2 (ja) * | 2012-03-12 | 2018-08-29 | 日本発條株式会社 | ウェーブスプリングおよびその製造方法 |
-
2014
- 2014-01-10 PL PL14740211T patent/PL2946126T3/pl unknown
- 2014-01-10 WO PCT/US2014/011011 patent/WO2014113283A1/en active Application Filing
- 2014-01-10 EP EP14740211.9A patent/EP2946126B1/de active Active
- 2014-01-10 CA CA2937141A patent/CA2937141C/en active Active
- 2014-01-10 US US14/761,494 patent/US9453549B2/en active Active
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106763391A (zh) * | 2017-01-12 | 2017-05-31 | 王炳超 | 两级主簧式非等偏频型渐变刚度板簧渐变间隙的设计方法 |
CN106763391B (zh) * | 2017-01-12 | 2019-01-15 | 山东恒日悬架弹簧有限公司 | 两级主簧式非等偏频型渐变刚度板簧渐变间隙的设计方法 |
Also Published As
Publication number | Publication date |
---|---|
US20150362036A1 (en) | 2015-12-17 |
CA2937141A1 (en) | 2014-07-24 |
EP2946126B1 (de) | 2018-09-12 |
CA2937141C (en) | 2020-04-21 |
WO2014113283A1 (en) | 2014-07-24 |
EP2946126A4 (de) | 2016-11-02 |
US9453549B2 (en) | 2016-09-27 |
PL2946126T3 (pl) | 2019-01-31 |
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